Home / 542,642,216.78-748,846,627.89-304,454,520.02

Finding the Fourth Proportional to 542,642,216.78, 748,846,627.89 and 304,454,520.02

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Solution

The fourth proportional to 542,642,216.78, 748,846,627.89 and 304,454,520.02 is: 420,147,444.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,642,216.78 : 748,846,627.89 = 304,454,520.02 : x
  2. Step 2: Convert to fraction form
    542,642,216.78/748,846,627.89 = 304,454,520.02/x
  3. Step 3: Cross multiply
    542,642,216.78x = 748,846,627.89 × 304,454,520.02
  4. Step 4: Simplify right side
    542,642,216.78x = 227,989,740,662,845,472
  5. Step 5: Solve for x
    x = 227,989,740,662,845,472/542,642,216.78
  6. Step 6: Final answer
    x = 420,147,444.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.